Add testcase 28 (3.1) to autobahn test suite.
Add testcase 28 (3.1) to autobahn test suite.

couchbasedeps/libws,couchbasedeps/libws,JoakimSoderberg/libws,couchbasedeps/libws,JoakimSoderberg/libws,JoakimSoderberg/libws